Microsoft Windows Installer version 2.0 or later. Microsoft Windows 2000 Service Pack 3 and Microsoft Windows XP include this version of the Windows Installer. Otherwise, the latest version of Windows Installer is available as a separate download at the following locations:

Note: IT professionals should refer to the IT professional resources section.

Installation instructions
If you have Microsoft Office 2003, do one of the following:

Use Microsoft Update (recommended). Microsoft Update consolidates updates provided by Windows Update and Office Update into one location and enables you to choose automatic delivery and installation of high-priority updates.

Use Office Update on the Office Online Web site. Office Update automatically detects Office and prompts you to install updates and service packs that bring Office programs up-to-date.

The downloads for this update are under the Files in this Download section below. You can double-click the executable package to begin installation, or extract the patch files by using a command line. The command line and instructions are included in the Knowledge Base article (197147): Command-Line Switches For IExpress Software Update Packages.